We have just posted some beta College Hoops 2K8 screenshots. FYI: These screenshots only include team home and away jerseys, as well as their team ratings.

"A brand new feature for College Hoops 2K8 is the All-American Training Challenge, delivering an exciting series of passing, shooting, and defensive tests against some of college basketball’s best former student-athletes. Also included in College Hoops 2K8 is the 6th Man Advantage, which brings a new level of interactive atmosphere to the college basketball experience."

They're fine. I actually prefer an always connected experience.
I'd really prefer an offline way to play, but its not a bother.
I don't really like them, and am more reluctant to buy a game because of it.
I won't buy them. I want my games offline.